Clinical Research Directory

Inclusion Criteria: For patients with fibromyalgia : * Men or women aged 18 or over * Diagnosis of fibromyalgia * Affiliated with a social security scheme * Having signed an informed consent form For patients with ADHD treated with methylphenidate * Men or women aged 18 or over * ADHD diagnosis * Current treatment with extended-release methylphenidate for at least 1 month, with stable dosage for at least 2 weeks * Affiliated with a social security scheme * Having signed an informed consent form For patients with ADHD but not treated with methylphenidate * Men or women aged 18 or over * ADHD diagnosis * Affiliated with a social security scheme * Having signed an informed consent form Exclusion Criteria: * For patients with fibromyalgia: existence of another condition explaining chronic pain * Severe cognitive impairment * Difficulties in understanding self-administered questionnaires * Difficulties in assessing pain intensity * Acute psychiatric disorder impacting the validity of self-report questionnaire data collection * Inability to take biological samples * Persons covered by Articles L1121-5 to L1121-8 of the CSP (corresponding to all protected persons: pregnant women, women in labor, nursing mothers, persons deprived of their liberty by judicial or administrative decision, minors, persons subject to legal protection measures: guardianship or curatorship).